458 PROCEEDINGS OF THE NATIONAL MUSEUM vol. io9 



Wing. — Pattern as figured, pale spot over r-m crossvein large, 

 broadly extending to costal wing margin; second radial cell dark to 

 apex, the dark area extending caudad from tip of cell as a small round 

 spot in cell R5 which sometimes is connected to the oblique distal 

 dark mark in cell R5; poststigmatic pale spot in cell R5 thus often 

 divided into an anterior small pale spot at tip of second radial cell 

 and a large posterior spot extending from posterior edge of second 

 radial cell at midlength to vein Mj; distal pale spot in cell R5 with a 

 narrow anterodistal extension curving to wing margin and following 

 it narrowly to wing tip; two large, elongate pale spots in cell Mi; 

 two pale spots in distal portion of cell M2, the proximal one connected 

 to a large pale area between medial and mediocubital forks and then 

 to pale area at wing base; pale spot in cell M4 large; a single pale spot 

 in apex of anal cell narrowly if at all connected to wing margin; 

 base of wing with broad pale area. Macrotrichia sparse but well 

 scattered on distal half of wing; costa extending to 0.78 (n = 3) of 

 distance to wing tip; second radial cell not reduced to a narrow slit 

 or obsolete as in pachymerus. Halter pale. 



Abdomen. — Grayish brown, yellowish at base above. Spermathecae 

 two, pyriform, subequal, measuring 0.043 by 0.034 mm. and 0.041 

 by 0.029 mm., the bases of the ducts sclerotized a short distance. 



Male genitalia: Ninth sternum with very shallow, caudomedian 

 excavation; ninth tergum short and broad, with very long, slender 

 apicolateral processes and a distinct mesal notch at apex. Basistyle 

 with ventral root foot-shaped, the posterior heel vestigial, the toe 

 slender and pointed; dorsal root very short and stout; dististyle 

 slightly curved, gradually tapered to stout, blunt apex. Aedeagus 

 stocky, basal arch very low and broad, basal arms stout and abruptly 

 bent, distal portion tapered to bluntly rounded apex. Parameres 

 each with basal knob, stem slender, abruptly bent near base, tapering 

 distally without ventral lobe, the ventrally distal portion very long, 

 tapered to simple, slender point. 



Distribution: Venezuela; Panama, 



Panama records: 



Canal Zone: Fort Sherman, Madden Dam, Mojinga Swamp (type locality of 



kintzi). 

 CniRiQuf Province: Rfo Tabasard. 

 Dari:6n Province: Garachin^, Punta Patifio. 

 Veraguas Province: Las Palmas. 



Discussion: Through the courtesy of Dr. Irving Fox of the Uni- 

 versity of Puerto Rico we have examined the type slide of caprilesi, 

 which is in good condition, and we have been able to determine by 

 direct comparison that kintzi Wirth and Blanton is a synonym. C. 

 caprilesi is closely related to pachymerus Lutz, but can be distinguished 



